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antiseptic1488 [7]

3 years ago

14

19) 7x - 8(-x+7)=-16+ 7x

1 answer:

NeX [460]3 years ago

5 0

Hi there!

»»————-　★　————-««

I believe your answer is:

x = 5

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$7x - 8(-x+7)=-16+7\\\--------------\\\rightarrow7x +8x - 56 =-16 + 7x\\\\\rightarrow 15x -56 = 7x - 16\\\\\rightarrow 15x - 7x - 56 = 7x - 7x - 16\\\\\rightarrow 8x - 56 =-16\\\\\rightarrow 8x - 56 + 56 = -16 + 56\\\\\rightarrow 8x = 40\\\\\rightarrow\frac{8x=40}{8}\\\\\rightarrow \boxed{x = 5}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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